1. The installation of oil pump to check the inlet and outlet flange of the seal ring and the pipeline is aging deformation (preferably to replace the new), at the same time should be cleaned into the oil pipeline inside the wall dirt, check the inlet oil pipeline of the sealing performance of the joints.

2. Check the motor shaft and bearing deformation and wear, such as the shaft has a swing phenomenon should be confirmed that the shaft deformation or bearing wear, to prevent motor problems affect the life of the pump.

3. Check whether the coupling wear deformation, oil pump installation After the pump shaft is concentric with the motor shaft, the simple way is to rotate the coupling with the hand (such as the use of plug-in motor, can be used to rotate the motor back after the fan) rotation strength feel even, flexible.

4. Before starting the motor to check whether the hydraulic oil in the tank is clean enough, the filter net is distorted and clean, it is recommended to clean the fuel tank thoroughly and replace the new hydraulic oil and filter net. In order to prevent the phenomenon of burning pump, must be filled with hydraulic fluid in the pump before starting Loosen the exhaust valve of the oil pump outlet (if there is no exhaust valve to loosen the connector of the oil pump outlet slightly), in order to eliminate the pump body and the air in the pipe, and in no-load when the point of the start, after normal operation (no bubbles out of the time) and then tighten the exhaust valve or oil port connector.

5. In the process of oil pump work should pay attention to fuel level, oil temperature, the use of pressure, such as whether to meet the requirements, normal work after the oil level is generally higher than the top of the filter net above 50mm, otherwise the oil pump is easy to absorb air and generate noise, the best oil temperature control at Prevent oil temperature too high and damage the friction surface formed by the protection of oil film.

6. The replacement of the pump core to check the pump shell in the hole is deformed, the shaft outside the spline and pump core spline part of the wear and deformation, such as positioning hole deformation or shaft key wear recommended users to replace the whole pump.

7. Check the shaft seal (Skeleton oil seal) Whether the aging deformation, bearing wear and loose (the proposed replacement of new shaft seals and bearings), replacement should be careful, the recommended use of the outer diameter and shaft seal (shaft seal) and the outside diameter slightly larger than the bearing inner diameter, slightly larger than the pump shaft outside diameter (bearing) of the flat hard objects to send them to a fixed position, Prevent shaft seals from deforming and damaging bearings.

8. Check the new and old pump core model, work direction is consistent, confirm that the rear can be installed, before installation of the pump shell to clean the wall, coupled with lubricating oil to install the pump core, installation, such as pump core can not be very smooth in place to check the pump core stator and oil plate is concentric, adjust the concentricity after the installation, After installation to confirm that the pump core positioning pin fixed in the pump housing positioning hole, check the seal is complete, flat. In order to prevent the sealing parts cutting edge, tighten the pump shell connection screw when the angle is even gradually tighten.

9. Adjust the oil pump inlet and outlet direction, as long as the pump shell fixed screw out, you can rotate on the pump shell, rotating guide needed to tighten the position of the screw, do not pull the pump core, so as to avoid the pump core positioning pin and the pump shell positioning hole dislocation or upper and lower pump shell connection between the seal ring dislocation.

10. The installation of oil pump to check the inlet and outlet flange of the seal ring and the pipeline is aging deformation (preferably to replace the new), at the same time should be cleaned into the oil pipeline inside the wall dirt, check the inlet oil pipeline of the sealing performance of the joints.